Home / 518,498,065.60-778,045,696.80-195,613,662.40

Finding the Fourth Proportional to 518,498,065.60, 778,045,696.80 and 195,613,662.40

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Solution

The fourth proportional to 518,498,065.60, 778,045,696.80 and 195,613,662.40 is: 293,533,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,498,065.60 : 778,045,696.80 = 195,613,662.40 : x
  2. Step 2: Convert to fraction form
    518,498,065.60/778,045,696.80 = 195,613,662.40/x
  3. Step 3: Cross multiply
    518,498,065.60x = 778,045,696.80 × 195,613,662.40
  4. Step 4: Simplify right side
    518,498,065.60x = 152,196,368,265,607,968
  5. Step 5: Solve for x
    x = 152,196,368,265,607,968/518,498,065.60
  6. Step 6: Final answer
    x = 293,533,145.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.